G05B 2219/25458
Opto isolation, optical separation
G05B2219/25458 (Opto isolation, optical separation) appears on 34 US grants and 12 published applications in this corpus.
Search patents in G05B- Granted patents
- 34
- Published applications
- 12
- Assignees
- 30
- Inventors
- 62
- Latest grant
- 8 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 2 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 2 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Secure control device, contactor comprising such a device and method for secure processing of a control signal8 Oct 2024US 12,112,109 B2Schneider Electric Industries SAS
- Optocoupler-based control circuit and method thereof21 Apr 2020US 10,630,210 B2Zhejiang Holip Electronic Technology Co., Ltd.
- Apparatus and methods to communicatively couple field devices to controllers in a process control system system15 Nov 2016US 9,495,313 B2Fisher-Rosemount Systems, Inc.
- Apparatus and methods to communicatively couple field devices to controllers in a process control system9 Aug 2016US 9,411,769 B2Fisher-Rosemount Systems, Inc.
- Industrial process field device with low power optical isolator3 Nov 2015US 9,175,993 B2Rosemount Inc.
- Field device15 Feb 2024US 2024/0053728 A1Samson Aktiengesellschaft
- Secure control device, contactor comprising such a device and method for secure processing of a control signal3 Jun 2021US 2021/0165943 A1Schneider Electric Industries SAS
- Optocoupler-based control circuit and method thereof28 Feb 2019US 2019/0068088 A1Zhejiang Holip Electronic Technology Co., Ltd.
- Apparatus and methods to communicatively couple field devices to controllers in a process control system7 May 2015US 2015/0127876 A1Fisher-Rosemount Systems, Inc.
- Industrial process field device with low power optical isolator26 Mar 2015US 2015/0082907 A1Rosemount Inc.
Most cited
By later US patents
- Microprocessor based control circuit for washing appliances with diagnostic system44US 4,245,309 AGeneral Electric Company · 1981
- Paint spraying apparatus41US 4,278,046 ACarrier Drysys Limited · 1981
- Fault processor for programmable controller with remote I/O interface racks36US 3,997,879 AAllen-Bradley Company, Inc. · 1976
- Interface for retrofitting a manually controlled machine for automatic control35US 8,078,297 B2Trimble Navigation Limited · 2011
- Sequence controller with microprocessor34US 4,328,539 AAMF Incorporated · 1982